Home / 156,702.96-216,428.13-105,627.60

Finding the Fourth Proportional to 156,702.96, 216,428.13 and 105,627.60

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Solution

The fourth proportional to 156,702.96, 216,428.13 and 105,627.60 is: 145,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,702.96 : 216,428.13 = 105,627.60 : x
  2. Step 2: Convert to fraction form
    156,702.96/216,428.13 = 105,627.60/x
  3. Step 3: Cross multiply
    156,702.96x = 216,428.13 × 105,627.60
  4. Step 4: Simplify right side
    156,702.96x = 22,860,783,944.39
  5. Step 5: Solve for x
    x = 22,860,783,944.39/156,702.96
  6. Step 6: Final answer
    x = 145,886.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.